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Testaroo

Images for testing thumbnail generation

A resolution ladder and varied aspect ratios for exercising thumbnail and preview generators.

Each card starts with one representative test file. Choose a use case, search, or filter to find a specific profile; a card’s variant menu contains its related samples.

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5 test families · 22 available files · Page 1 of 1

Preview of Bar Chart (PNG)

Charts

Bar Chart (PNG)

A clean bar chart of monthly revenue with axis labels, gridlines, and value labels: a real-world fixture for testing chart-extraction and OCR tools, vision models, and thumbnail rendering.

File
PNG · Charts
Preview of Flat Illustration (SVG)

Vector

Flat Illustration (SVG)

A flat vector landscape (gradient sky, sun, layered hills, and trees built from bezier paths), a richer SVG for testing gradient and path rendering, thumbnailing, and vector conversion.

File
SVG · Vector
Preview of Identicon Avatar: Ada Lovelace

Avatar

Identicon Avatar: Ada Lovelace

A 256×256 identicon-style avatar generated deterministically from the seed “ada-lovelace”: a symmetric 5×5 block pattern like the default avatars on many sites. For testing avatar rendering, placeholder generation, and i

File
PNG · Avatar
Preview of Placeholder 1200×630 (og-card)

Placeholder

Placeholder 1200×630 (og-card)

A 1200×630 placeholder image with its dimensions labelled on a coloured grid: a drop-in stand-in for testing layouts, responsive images, and thumbnail generation. Part of an avatar-to-Full-HD placeholder pack.

File
PNG · Placeholder · 1200 × 630 px
Preview of Resolution: 1080×1920 (vertical 9:16)

Resolution Ladder

Resolution: 1080×1920 (vertical 9:16)

A fruit still life rendered at 1080×1920 (vertical 9:16) with a faint registration grid: part of a ladder from 16px to 4K for testing scaling, thumbnail generation, and responsive layout on recognisable content.

File
PNG · Resolution Ladder · 1080 × 1920 px